Dictionary

invade

verb in·vade \in-ˈvād\

: to enter (a place, such as a foreign country) in order to take control by military force

: to enter (a place) in large numbers

: to enter or be in (a place where you are not wanted)

in·vad·edin·vad·ing

Full Definition of INVADE

transitive verb
1
:  to enter for conquest or plunder
2
:  to encroach upon :  infringe
3
a :  to spread over or into as if invading :  permeate <doubts invade his mind>
b :  to affect injuriously and progressively <gangrene invades healthy tissue>
in·vad·er noun

Examples of INVADE

  1. The troops invaded at dawn.
  2. When tourists invade, the town is a very different place.
  3. The cancer eventually invaded the brain.
  4. Weeds had invaded the garden.
  5. Bacteria invaded and caused an infection.

Origin of INVADE

Middle English, from Latin invadere, from in- + vadere to go — more at wade
First Known Use: 15th century

invade

transitive verb in·vade \in-ˈvād\   (Medical Dictionary)
in·vad·edin·vad·ing

Medical Definition of INVADE

1
:  to enter and spread within either normally (as in development) or abnormally (as in infection) often with harmful effects <protect the body from invading viruses> <branches of a nerve invade the skin area>
2
:  to affect injuriously and progressively <gangrene invades healthy tissue>
in·vad·er \-ˈvād-ər\ noun

Browse

Next Word in the Dictionary: invaginatePrevious Word in the Dictionary: invadableAll Words Near: invade
April 01, 2015
diapause Hear it
a period of physiological dormancy
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears